DE4028354A1 - Electric heating element suitable for domestic coffee-making machine - has heating resistance paths on ceramic support with through-holes allowing connection to regulating elements - Google Patents
Electric heating element suitable for domestic coffee-making machine - has heating resistance paths on ceramic support with through-holes allowing connection to regulating elementsInfo
- Publication number
- DE4028354A1 DE4028354A1 DE19904028354 DE4028354A DE4028354A1 DE 4028354 A1 DE4028354 A1 DE 4028354A1 DE 19904028354 DE19904028354 DE 19904028354 DE 4028354 A DE4028354 A DE 4028354A DE 4028354 A1 DE4028354 A1 DE 4028354A1
- Authority
- DE
- Germany
- Prior art keywords
- heating element
- plate
- attached
- ceramic support
- regulating elements
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 8
- 238000010438 heat treatment Methods 0.000 title claims description 21
- 230000001105 regulatory effect Effects 0.000 title abstract 2
- 238000005485 electric heating Methods 0.000 title 1
- 239000004020 conductor Substances 0.000 claims abstract description 9
- 238000007650 screen-printing Methods 0.000 claims abstract description 6
- 239000011521 glass Substances 0.000 claims abstract description 5
- 229910052709 silver Inorganic materials 0.000 claims abstract description 3
- 239000004332 silver Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 3
- 229910010293 ceramic material Inorganic materials 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 abstract description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0202—Switches
- H05B1/0213—Switches using bimetallic elements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
- H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
- H05B3/748—Resistive heating elements, i.e. heating elements exposed to the air, e.g. coil wire heater
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Resistance Heating (AREA)
- Surface Heating Bodies (AREA)
Abstract
Description
Immer mehr werden in Haushaltsgeräten, insbesondere in Kaffeemaschinen Heizungselemente eingesetzt, die von auf einem keramischen Element angebrachten, leitenden Wider standsbahnen Gebrauch machen, in denen Wärme erzeugt wird. Solche Heizungselemente lassen sich leicht auswechseln und sind nicht teuer in der Herstellung, während Bimetallschal ter und dergleichen ebenfalls auf der Platte angebracht werden können.More and more are in household appliances, especially in Coffee machines heating elements used by on a conductive element attached to a ceramic element use trajectories where heat is generated. Such heating elements can be easily replaced and are not expensive to manufacture while bimetallic scarf ter and the like also attached to the plate can be.
Die vorliegende Erfindung beabsichtigt die Verbesserung des oben dargelegten Stands der Technik.The present invention intends to improve the Prior art set out above.
Zu diesem Zwecke verschafft die vorliegende Erfindung ein Heizungselement nach Anspruch 1. Die auf der Trägerplatte angebrachten Leiterbahnen können mit größtmöglicher Dichte und äußerst gleichmäßig angebracht werden, da die weiteren Schaltelemente auf der anderen Seite der Trägerplatte ange bracht werden können.The present invention provides for this purpose Heating element according to claim 1. The on the support plate attached conductor tracks can with the greatest possible density and be attached extremely evenly since the others Switching elements on the other side of the carrier plate can be brought.
Weiter verschafft die vorliegende Erfindung ein System nach Anspruch 6, bei dem das Heizungselement in die Nähe eines zu erhitzenden Objekts gebracht werden kann.The present invention further provides a system Claim 6, wherein the heating element in the vicinity of one heating object can be brought.
Weitere Kennzeichen, Vorteile und Einzelheiten der vorlie genden Erfindung werden anhand einer Beschreibung einer Vorzugsausführungsform der Erfindung erläutert, mit Bezug nahme auf die beigefügte Zeichnung, in der zeigen:Other characteristics, advantages and details of this ing invention are based on a description of a Preferred embodiment of the invention explained with reference take the attached drawing, in which show:
Fig. 1A eine perspektivische Seitenansicht der Oberseite einer Vorzugsausführungsform des erfindungsgemäßen Heizung selements; und Fig. 1A is a side perspective view of the top of a preferred embodiment of the heating selements invention; and
Fig. 2 eine perspektivische Seitenansicht der Unterseite einer Vorzugsausführungsform aus Fig. 1. FIG. 2 shows a perspective side view of the underside of a preferred embodiment from FIG. 1.
Ein zu heizendes Objekt 1 (Fig. 1), beispielsweise eine Metallplatte, auf die eine Kaffeekanne aufgesetzt werden kann, ist mit einem mit Gewinde versehenen Stift 2 versehen, mit dessen Hilfe in Zusammenwirken mit einem Ring 3 und einer Mutter 4 ein Heizungselement 5 geklemmt werden kann. Auf dem Heizungselement 5 sind leitende Widerstandsbahnen 6 auf einer keramischen Trägerplatte 7 aus Al2O3 vorzugsweise im Siebdruckverfahren angebracht. Über den Leiterbahnen ist vorzugsweise eine Glasschicht 8 im Siebdruckverfahren angebracht, um die Oxidation der Leiterbahnen 6 zu verhindern.An object 1 to be heated ( FIG. 1), for example a metal plate on which a coffee pot can be placed, is provided with a threaded pin 2 , with the aid of which a heating element 5 is clamped in cooperation with a ring 3 and a nut 4 can be. Conductive resistance tracks 6 are mounted on the heating element 5 on a ceramic carrier plate 7 made of Al 2 O 3, preferably using the screen printing method. A glass layer 8 is preferably applied over the conductor tracks in a screen printing process in order to prevent oxidation of the conductor tracks 6 .
Zwischen dem Heizungselement 5 und dem zu heizenden Objekt 1 ist eine lose isolierende Platte 9 angebracht. Die lose isolierende Platte 9 (Fig. 2) kann beispielswei se eine Dicke von etwa 0,25 mm haben, selbst wenn die Glasschicht 8 ausgelassen bleiben sollte. Hierdurch erfolgt eine wirksame Heizung des Objekts 1, was weniger elektrische Leistung erfordert, während eine äußerst gleichmäßige Heizung des Objekts 1 erzielt wird.A loosely insulating plate 9 is attached between the heating element 5 and the object 1 to be heated. The loose insulating plate 9 ( FIG. 2) can for example have a thickness of about 0.25 mm, even if the glass layer 8 should be left out. This results in an effective heating of the object 1 , which requires less electrical power, while an extremely uniform heating of the object 1 is achieved.
Durch eine Öffnung 11 in der keramischen Platte 7 ist eine leitende Verbindung 12 aus versintertem Silber zur Rück- oder Unterseite der Trägerplatte 7 hin gebildet. Von schematisch bezeichneten Anschlußklemmen 13, 14 aus sind Leiterbahnen 15, 16 auf der Rückseite der Trägerplat te 7 angebracht, wobei die Leiterbahn 16 über eine andere, nur schematisch angegebene Öffnung zur Front- oder Oberseite des Heizungselements 5 geführt ist und die Leiterbahn 15 über ein schematisch angegebenes Regelele ment 17 mit der leitenden Verbindung 12 verbunden ist. Das Regelelement 17 ist beispielsweise ein Bimetall- Schalter, der bei einer vorgegebenen Temperatur die elektrische Zufuhr zu den Leiterbahnen unterbricht und somit die Überhitzung des zu erhitzenden Objekts 1 vermeidet. Das Regelelement 17 kann eine oder mehrere (aktive) elektronische Komponenten umfassen. A conductive connection 12 made of sintered silver is formed through an opening 11 in the ceramic plate 7 to the back or underside of the carrier plate 7 . From schematically designated terminals 13 , 14 from conductor tracks 15 , 16 are attached to the rear of te Trägerplat te 7 , wherein the conductor track 16 is guided through another, only schematically indicated opening to the front or top of the heating element 5 and the conductor track 15 via schematically indicated Regelele element 17 is connected to the conductive connection 12 . The control element 17 is, for example, a bimetal switch which interrupts the electrical supply to the conductor tracks at a predetermined temperature and thus avoids the overheating of the object 1 to be heated. The control element 17 can comprise one or more (active) electronic components.
Selbstverständlich können auch andere elektrische Elemente auf der Rück- oder Unterseite der Trägerplatte 1 vorzugs weise im Siebdruckverfahren angebracht werden.Of course, other electrical elements on the back or underside of the carrier plate 1 can be attached preferentially in the screen printing process.
Dem Fachmann dürfte klar sein, daß Modifizierungen des vorliegenden Erfindungsgedankens möglich sein können: Die leitenden Widerstandsbahnen 6 können beispielsweise mit einer schützenden Glasschicht versehen sein, während das Heizungselement 5 auf vielerlei Arten an dem zu erhitzen den Objekt 1 angebracht werden kann.It should be clear to the person skilled in the art that modifications of the present inventive concept may be possible: the conductive resistance tracks 6 can, for example, be provided with a protective glass layer, while the heating element 5 can be attached to the object 1 to be heated in many ways.
Keramisches Material kann zusätzlich zu Al2O3 ebenfalls Verbundstoffe umfassen.Ceramic material may also include composites in addition to Al 2 O 3 .
Die isolierende Platte 9 kann ebenfalls Kapton (TM) mit einer Dicke von 125 µm umfassen.The insulating plate 9 can also comprise Kapton (TM) with a thickness of 125 μm.
Die Widerstandsbahnen können auch mittels Aufdampftechni ken angebracht werden.The resistance tracks can also be applied by means of vapor deposition ken be attached.
Claims (7)
eine Trägerplatte (7) aus keramischem Material und eine oder mehrere leitende Widerstandsbahnen (6), in denen Wärme erzeugt wird, und die auf der einen Seite der keramischen Trägerplatte (7) angebracht sind;
wobei eine oder mehrere Öffnungen (11) in der keramischen Platte (7) vorgesehen ist, bzw. sind, in denen leitendes Material für eine oder mehrere Verbindungen (12) zu der jeweils anderen Seite der Platte (7) angebracht ist, wobei auf der anderen Seite Regelelemente (17) an die Widerstandsbahnen (6) angeschlossen werden können.1. Element for electrically heating an object, the element comprising:
a carrier plate ( 7 ) made of ceramic material and one or more conductive resistance tracks ( 6 ), in which heat is generated, and which are attached on one side of the ceramic carrier plate ( 7 );
wherein one or more openings ( 11 ) is or are provided in the ceramic plate ( 7 ), in which conductive material for one or more connections ( 12 ) to the other side of the plate ( 7 ) is attached, whereby on the other side control elements ( 17 ) can be connected to the resistance tracks ( 6 ).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8902238A NL8902238A (en) | 1989-09-06 | 1989-09-06 | HEATING ELEMENT AND SYSTEM INCLUDING SUCH A HEATING ELEMENT. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE4028354A1 true DE4028354A1 (en) | 1991-03-07 |
Family
ID=19855272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19904028354 Withdrawn DE4028354A1 (en) | 1989-09-06 | 1990-09-06 | Electric heating element suitable for domestic coffee-making machine - has heating resistance paths on ceramic support with through-holes allowing connection to regulating elements |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE4028354A1 (en) |
| NL (1) | NL8902238A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4341035A1 (en) * | 1993-12-02 | 1995-06-08 | Ego Elektro Blanc & Fischer | Safe-condition monitoring unit for electrical load device |
| DE4341036A1 (en) * | 1993-12-02 | 1995-06-08 | Ego Elektro Blanc & Fischer | Safe-condition monitoring unit for electrical load device |
| DE19508315C1 (en) * | 1995-03-09 | 1996-05-09 | Vontana Wasserbetten Gmbh | Heating unit for water beds |
| EP0725557A1 (en) * | 1995-02-02 | 1996-08-07 | ATAG Keukentechniek B.V. | Heating device |
| WO1997049985A1 (en) * | 1996-06-21 | 1997-12-31 | Euroferm Gmbh | Device for measuring the partial pressure of gases dissolved in liquids |
| WO1998036616A1 (en) * | 1997-02-17 | 1998-08-20 | Strix Limited | Electric heaters |
| GB2337683A (en) * | 1997-02-17 | 1999-11-24 | Strix Ltd | Electric heaters |
| US6003362A (en) * | 1994-12-21 | 1999-12-21 | Euroferm Gmbh I.G. | Apparatus for measuring the partial pressure of gases dissolved in liquids |
| DE10145702A1 (en) * | 2001-09-17 | 2003-04-17 | Bleckmann Gmbh Lamprechtshause | Flat heating profile for direct medium heating |
| DE10225063A1 (en) * | 2002-06-06 | 2004-01-08 | Frima S.A. | Modular heating element and a cooking device using such heating elements |
| FR2859867A1 (en) * | 2003-09-16 | 2005-03-18 | Frima Sa | Heating unit for cooking apparatus, has plate unit with spring and coupled to electrical conductor unit that is placed in contact with heat resistance of heating unit layer by elastic force exerted by plate unit |
-
1989
- 1989-09-06 NL NL8902238A patent/NL8902238A/en not_active Application Discontinuation
-
1990
- 1990-09-06 DE DE19904028354 patent/DE4028354A1/en not_active Withdrawn
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4341035A1 (en) * | 1993-12-02 | 1995-06-08 | Ego Elektro Blanc & Fischer | Safe-condition monitoring unit for electrical load device |
| DE4341036A1 (en) * | 1993-12-02 | 1995-06-08 | Ego Elektro Blanc & Fischer | Safe-condition monitoring unit for electrical load device |
| US6003362A (en) * | 1994-12-21 | 1999-12-21 | Euroferm Gmbh I.G. | Apparatus for measuring the partial pressure of gases dissolved in liquids |
| EP0725557A1 (en) * | 1995-02-02 | 1996-08-07 | ATAG Keukentechniek B.V. | Heating device |
| NL9500196A (en) * | 1995-02-02 | 1996-09-02 | Atag Keukentechniek Bv | Heating device. |
| US5811760A (en) * | 1995-03-09 | 1998-09-22 | Vontana Wasserbetten Gmbh | Heating device for water beds |
| DE19508315C1 (en) * | 1995-03-09 | 1996-05-09 | Vontana Wasserbetten Gmbh | Heating unit for water beds |
| NL1002575C2 (en) * | 1995-03-09 | 1998-04-07 | Vps International B V | Heating system for waterbeds. |
| EP0731624A3 (en) * | 1995-03-09 | 1996-12-11 | Vontana Wasserbetten Gmbh | Heating device for waterbeds |
| EP0731624A2 (en) * | 1995-03-09 | 1996-09-11 | VONTANA Wasserbetten GmbH | Heating device for waterbeds |
| WO1997049985A1 (en) * | 1996-06-21 | 1997-12-31 | Euroferm Gmbh | Device for measuring the partial pressure of gases dissolved in liquids |
| WO1998036616A1 (en) * | 1997-02-17 | 1998-08-20 | Strix Limited | Electric heaters |
| GB2337683A (en) * | 1997-02-17 | 1999-11-24 | Strix Ltd | Electric heaters |
| GB2337683B (en) * | 1997-02-17 | 2002-01-16 | Strix Ltd | Electric heaters |
| DE10145702A1 (en) * | 2001-09-17 | 2003-04-17 | Bleckmann Gmbh Lamprechtshause | Flat heating profile for direct medium heating |
| DE10225063A1 (en) * | 2002-06-06 | 2004-01-08 | Frima S.A. | Modular heating element and a cooking device using such heating elements |
| DE10225063B4 (en) * | 2002-06-06 | 2006-03-09 | Frima S.A. | Cooking appliance with modular heating elements |
| FR2859867A1 (en) * | 2003-09-16 | 2005-03-18 | Frima Sa | Heating unit for cooking apparatus, has plate unit with spring and coupled to electrical conductor unit that is placed in contact with heat resistance of heating unit layer by elastic force exerted by plate unit |
| DE10347222A1 (en) * | 2003-09-16 | 2005-04-21 | Rational Ag | Heating element for a cooking appliance |
| DE10347222B4 (en) * | 2003-09-16 | 2005-09-22 | Rational Ag | Heating element for cooking appliances |
Also Published As
| Publication number | Publication date |
|---|---|
| NL8902238A (en) | 1991-04-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8130 | Withdrawal |